network/nweb: Added (tiny web server in C).
Signed-off-by: Willy Sudiarto Raharjo <willysr@slackbuilds.org>
This commit is contained in:
Dave Woodfall
Willy Sudiarto Raharjo
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A tiny web server in C.
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nweb is a small and very safe mini web server nweb only servers out
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file/web pages with extensions named below and only from the named
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directory or its sub-directories.
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There is no fancy features = safe and secure.
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Example: nweb 8181 /home/nwebdir &
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Only Supports: gif jpg jpeg png ico zip gz tar htm html
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Not Supported: URLs including "..", Java, Javascript, CGI
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Not Supported: directories / /etc /bin /lib /tmp /usr /dev /sbin
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client.c:
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Also included is the source for a client. This client.c program is
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designed to fake being a web browser. It sends the expected requests to
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the web server over a network socket connection and displays the results
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as text rather than graphically displaying the results. In the code you
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will have to change the two lines as below to match your web server or
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nweb server. See README.client for instructions. The client.c source
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code can be found in the /usr/doc/nweb-<VERSION> directory.
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client.c
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This client.c program is designed to fake being a web browser. It sends the
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expected requests to the web server over a network socket connection and
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displays the results as text rather than graphically displaying the results. In
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the code you will have to change the two lines as below to match your web
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server or nweb server.
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/* YOU WILL HAVE TO CHANGE THESE TWO LINES TO MATCH YOUR CONFIG / #define PORT
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* 8181 /
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Port number as an integer - web server default is 80 / #define IP_ADDRESS
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"192.168.0.8" / IP Address as a string */
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The default is to request the /index.html from the web server. If you want to
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request another file then change the GET line as below:
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char *command = "GET /index.html HTTP/1.0 \r\n\r\n" ;
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To, for example:
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char *command = "GET /nigel.jpg HTTP/1.0 \r\n\r\n" ;
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Then compile the program with: cc client.c -o client
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I save the output in to a file as putting a non-test file like .jpg to the
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terminal screen can cause chaos: client >output
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Then edit the output file: vi output
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In real life, the interaction of web browser and web server can be much more complex.
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1. The web browser can tell the web server about its name, version and capabilities.
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2. The web server can send complex file types line JavaScript or Java programs
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or other active components.
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3. They can maintain a longer connection over the socket for efficiency.
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4. Below is an example of my Firefox brower requesting an index.html file. I
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have added newline characters to make it readable - it is 1300 bytes long! I
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have no idea what most of it is about. You will have to read the The World Wide
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Web Consortium (W3C) at http://www.w3.org for all the details.
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GET /index.html HTTP/1.1Host: myserver.home.com:80User-Agent: Mozilla/5.0 (W indows;
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U; Windows NT 5.1; en-GB; rv:1.9.2.28) Gecko/20120306 Firefox/3.6.28 (.NET CLR
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3.5.30729)Ac cept: image/png,image/;q=0.8,/*;q=0.5Accept-Language:
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en-gb,en;q=0.5Accept-Encoding: gzip,defla teAccept-Charset: ISO-8859-1,utf-8;
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q=0.7,*;q=0.7Keep-Alive: 115Connection: keep-alive**Referer:
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http://myserver.uk.home.com:8181/index.html**Cookie:
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__utma=101107545.1790272076.1316019590.13289002 55.1328908680.164;
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__utmz=101107545.1328566199.157.46.utmcsr=t.co|utmccn=(referral)|utmcmd=referral| u
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tmcct=/iTJx4DO1; UnicaNIODID=ZBr8gm79vIG-XKeoGGb; W3SSO_ACCESS=abc.home.com;
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ISP=70fdfc95
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d93011d783e4de784ea97766-70fdfc95d93011d783e4de784ea97766-f67749a8b899e8ceed7e940b8c4bf189;
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Prof ile=2000121913394303111032836125|EN|866|866.BDF|en-GB;
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_unam=693fb60-1337f162b72-11770d11-5; WLS intra_USERID=nigel@hotmail.com;
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ipcInfo=cc%3Duk%3Blc%3Den%3Bac%3Dall; iwm1p=214617669; bprememberme=nigel@
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hotmail.com; EPSPROFILE=EE2355DFE16AE020BE6C62FCB6BF5602;
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DWPERM=Xa.2/Xb.Xzso3-U35t8RWKvqBreGaQMgsP_RG
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Fl1124oIt-L-OPJIdSautkBN0D4NUp9JLlpUqPqB6CWOo-pgrJwhxNvvSfPAajgetaA2MOYwHfQPXPTRG9zwOMMR57EHQtXhOy5Om
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yzanyZthvVClm6uxvbwh0isEQ2Mm_9g2l7NjcA3RJdjuLaB3qlljOmyVuhDjBkgdNEb3PgYcCpbiu1FUzXrhPalhgsbAj7NBkaY88
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Yyg/Xc./Xd./Xf./Xg.1696801
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I hope this has been instructive, thanks, Nigel Griffiths
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#!/bin/sh
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# Slackware build script for nweb
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# Copyright 2021 Dave Woodfall <dave@slackbuilds.org>
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# All rights reserved.
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#
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# Redistribution and use of this script, with or without modification, is
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# permitted provided that the following conditions are met:
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#
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# 1. Redistributions of this script must retain the above copyright
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# notice, this list of conditions and the following disclaimer.
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#
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# THIS SOFTWARE IS PROVIDED BY THE AUTHOR "AS IS" AND ANY EXPRESS OR IMPLIED
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# WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
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# MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
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# EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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# PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
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# OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
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# WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
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# OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
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# ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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PRGNAM=nweb
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COMMIT=${COMMIT:-867a6dd46298c882501f5c26d31ee821177542ab}
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VERSION=${VERSION:-23_"$( printf %s $COMMIT | cut -c 1-7 )"}
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BUILD=${BUILD:-1}
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TAG=${TAG:-_SBo}
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if [ -z "$ARCH" ]; then
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case "$( uname -m )" in
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i?86) ARCH=i586 ;;
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arm*) ARCH=arm ;;
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*) ARCH=$( uname -m ) ;;
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esac
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fi
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CWD=$(pwd)
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TMP=${TMP:-/tmp/SBo}
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PKG=$TMP/package-$PRGNAM
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OUTPUT=${OUTPUT:-/tmp}
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if [ "$ARCH" = "i586" ]; then
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SLKCFLAGS="-O2 -march=i586 -mtune=i686"
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LIBDIRSUFFIX=""
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elif [ "$ARCH" = "i686" ]; then
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SLKCFLAGS="-O2 -march=i686 -mtune=i686"
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LIBDIRSUFFIX=""
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elif [ "$ARCH" = "x86_64" ]; then
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SLKCFLAGS="-O2 -fPIC"
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LIBDIRSUFFIX="64"
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else
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SLKCFLAGS="-O2"
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LIBDIRSUFFIX=""
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fi
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set -e
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rm -rf $PKG
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mkdir -p $TMP $PKG/usr/bin $OUTPUT
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cd $TMP
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rm -rf $PRGNAM-$COMMIT
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tar xvf $CWD/$PRGNAM-$COMMIT.tar.gz
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cd $PRGNAM-$COMMIT
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chown -R root:root .
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find -L . \
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\( -perm 777 -o -perm 775 -o -perm 750 -o -perm 711 -o -perm 555 \
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-o -perm 511 \) -exec chmod 755 {} \; -o \
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\( -perm 666 -o -perm 664 -o -perm 640 -o -perm 600 -o -perm 444 \
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-o -perm 440 -o -perm 400 \) -exec chmod 644 {} \;
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${CC:-gcc} $SLKCFLAGS nweb${VERSION:0:2}.c -o $PKG/usr/bin/nweb
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strip --strip-unneeded $PKG/usr/bin/nweb
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mkdir -p $PKG/usr/doc/$PRGNAM-$VERSION/{www-example,client}
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cp -a client.c $PKG/usr/doc/$PRGNAM-$VERSION/client
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cp -a nigel.jpg favicon.ico nweb.log index.html \
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$PKG/usr/doc/$PRGNAM-$VERSION/www-example
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cp -a README.md $CWD/README.client $PKG/usr/doc/$PRGNAM-$VERSION
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cat $CWD/$PRGNAM.SlackBuild > $PKG/usr/doc/$PRGNAM-$VERSION/$PRGNAM.SlackBuild
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mkdir -p $PKG/install
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cat $CWD/slack-desc > $PKG/install/slack-desc
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cd $PKG
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/sbin/makepkg -l y -c n $OUTPUT/$PRGNAM-$VERSION-$ARCH-$BUILD$TAG.${PKGTYPE:-tgz}
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PRGNAM="nweb"
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VERSION="23_867a6dd"
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HOMEPAGE="https://github.com/ankushagarwal/nweb"
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DOWNLOAD="https://github.com/ankushagarwal/nweb/archive/867a6dd46298c882501f5c26d31ee821177542ab/nweb-867a6dd46298c882501f5c26d31ee821177542ab.tar.gz"
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MD5SUM="7570ab89a441f1b11f2ab099660b9daa"
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DOWNLOAD_x86_64=""
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MD5SUM_x86_64=""
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REQUIRES=""
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MAINTAINER="Dave Woodfall"
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EMAIL="dave@slackbuilds.org"
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# HOW TO EDIT THIS FILE:
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# The "handy ruler" below makes it easier to edit a package description.
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# Line up the first '|' above the ':' following the base package name, and
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# the '|' on the right side marks the last column you can put a character in.
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# You must make exactly 11 lines for the formatting to be correct. It's also
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# customary to leave one space after the ':' except on otherwise blank lines.
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|-----handy-ruler------------------------------------------------------|
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nweb: nweb (A tiny web server in C)
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nweb:
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nweb: nweb is a small and very safe mini web server nweb only servers out
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nweb: file/web pages with certain extensions and only from the named
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nweb: directory or its sub-directories.
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nweb:
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nweb: There is no fancy features = safe and secure.
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nweb:
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nweb: Example: nweb 8181 /home/nwebdir &
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nweb:
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nweb:
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